Mnemonics Students use special phrases to help them remember information. Here’s an example: Please Excuse My Dear Aunt Sally is often used to remember the order of operations in math: Parentheses, Exponents, Multiply, Divide, Add and Subtract.This strategy can also help with learning vocabulary. For example, a child can learn the scientific name for the common frog, Ranidae, by using rain as the keyword along with a picture of a frog sitting in the rain.